What is CVE-2018-21030?

CVE-2018-21030 is a medium-severity vulnerability in Jupyter Notebook, classified under Cross-site Scripting. CVSS score: 5.3/10. Published 2019-10-31.

How severe is CVE-2018-21030?

Medium severity. CVSS v3 base score is 5.3 out of 10.

XSS in Jupyter Notebook

CVE-2018-21030

Jupyter Notebook before 5.5.0 does not use a CSP header to treat served files as belonging to a separate origin. Thus, for example, an XSS payload can be placed in an SVG document.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.014 (70.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Jupyter Notebook
N/a — versions n/a

Weakness classification (CWE)

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
cve@mitre.org (mailing-list, x_refsource_MLIST)

Frequently asked questions

What is CVE-2018-21030?: CVE-2018-21030 is a medium-severity vulnerability in Jupyter Notebook, classified under Cross-site Scripting. CVSS score: 5.3/10. Published 2019-10-31.
How severe is CVE-2018-21030?: Medium severity. CVSS v3 base score is 5.3 out of 10.